#include <stdio.h>

/*捕鱼和分鱼*/

void main()
{
    int n,i,x,flag=1;
    for(n=6;flag;n++)
    {
        for(x=n,i=1&&flag;i<=5;i++)
        if((x-1)%5==0)
        x=4*(x-1)/5;
        else flag=0;
        if(flag)break;
        else flag=1;
    }
    printf("Total number of fish catched = %d\n",n);
}